Buffalo Trace only has 3 bourbon mashbills. All brands come from one of these 3. Brand depends on age and location in the warehouse. The Old Charter is the low rye mashbill, which includes Buffalo Trace, Eagle Rare, and George T Stagg. So if you like Charter 10, try one of the ones I mentioned.
Those same barrels of bourbon that have been making Charter 10 are still out there, just packaged different
This post was edited on 3/7 at 2:34 pm